The President of State University wants to forecast student enrollments for this academic year based on the following historical data: Year 5 year ago 4 years ago 3 years ago 2 years ago Last year Enrollments 15,000 16,000 18,000 20,000 21,000 Holt's method S = D. +(1-a) S-+G-)) G = P(S, -5,-) + (1 - 3)G-1 F = S,+TG What is the forecast for this year using Holt's method with alpha = .05 and beta = 0.3, if the estimate of the intercept value for last year was 21.000, the forecast for two years ago was 19,000, and the estimate of the slope value for last year's was 1,500? 18,750 19.500 21,000